activity
20142026
most citedDistances and parallax bias in Gaia DR2

157 citations · 410 across the 8 of their papers we have counts for

collaborators

8 papers

astro-ph.GA2026

Tree-ring structure of Galactic bar resonance in N-body simulations

Rimpei Chiba, Michiko Fujii, Junichi Baba +2

We study the structure and evolution of the galactic bar's resonant phase-space in self-consistent N-body simulations of the Milky Way, with and without perturbations from the Sagi…

astro-ph.GA2023★ 3 cited

Chemical Evolution in Nuclear Stellar Discs

Jennifer K S Friske, Ralph Schönrich

Nuclear Stellar Discs (NSDs) have been observed in the vast majority of barred disc galaxies including the Milky Way. Their intense star formation is sustained by the intense gas i…

astro-ph.GA2023★ 24 cited

A twisted and precessing Cepheid warp in the outer Milky Way disc

Walter Dehnen, Marcin Semczuk, Ralph Schönrich

We examine the Galactic warp in a sample of all classical Cepheids with Gaia DR3 radial velocity. In each radial bin, we determine (1) the inclined plane normal to the mean orbital…

astro-ph.GA2019★ 157 cited

Distances and parallax bias in Gaia DR2

Ralph Schönrich, Paul McMillan, Laurent Eyer

We derive Bayesian distances for all stars in the RV sample of Gaia DR2, and use the statistical method of Schoenrich, Binney & Asplund(2012) to validate the distances and test the…

astro-ph.GA2017★ 27 cited

Migration and kinematics in growing disc galaxies with thin and thick discs

Michael Aumer, James Binney, Ralph Schönrich

We analyse disc heating and radial migration in N-body models of growing disc galaxies with thick and thin discs. Similar to thin-disc-only models, galaxies with appropriate non-ax…

astro-ph.GA2014★ 35 cited

The Vertical Metallicity Gradient of the Milky Way Disk: Transitions in [a/Fe] Populations

Katharine J. Schlesinger, Jennifer A. Johnson, Constance M. Rockosi +10

Using G dwarfs from the Sloan Extension for Galactic Understanding and Exploration (SEGUE) survey, we have determined a vertical metallicity gradient over a large volume of the Mil…